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arxiv: 1612.00457 · v2 · pith:NWIOVW5Jnew · submitted 2016-12-01 · 🌌 astro-ph.HE

Searching for Primordial Black Holes in the radio and X-ray sky

Daniele Gaggero , Gianfranco Bertone , Francesca Calore , Riley M.T. Connors , Mark Lovell , Sera Markoff , Emma Storm This is my paper
classification 🌌 astro-ph.HE
keywords blackholesprimordialradiox-rayaccretioncatalogcomparison
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We model the accretion of gas onto a population of massive primordial black holes in the Milky Way, and compare the predicted radio and X-ray emission with observational data. We show that under conservative assumptions on the accretion process, the possibility that ${\cal O}(10) \, M_\odot$ primordial black holes can account for all of the dark matter in the Milky Way is excluded at $5\sigma$ by a comparison with a VLA radio catalog at $1.4$ GHz, and at $\simeq 40\sigma$ by a comparison with a Chandra X-ray catalog ($0.5 - 8$ keV). We argue that this method can be used to identify such a population of primordial black holes with more sensitive future radio and X-ray surveys.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Constraints on the Primordial Black Hole Abundance using Pulsar Parameter Drifts

    astro-ph.CO 2026-04 unverdicted novelty 8.0

    The first search for scalar-induced gravitational waves via pulsar parameter drifts yields f_PBH < 10^{-10} (95% CL) for PBH masses 0.3 to 4e4 solar masses, strongly disfavoring a primordial black hole origin for LVK ...

  2. GW231123: A Possible Primordial Black Hole Origin

    astro-ph.CO 2025-08 conditional novelty 6.0

    GW231123's masses and high spins are consistent with primordial black holes that accreted mass and angular momentum in the early universe within the standard PBH framework.

  3. Primordial Black Holes as Dark Matter: Recent Developments

    astro-ph.CO 2020-06 unverdicted novelty 3.0

    Primordial black holes in specific mass ranges could account for some or all dark matter while resolving structure-formation and seed problems in standard cosmology.